2015-06-21 118 views
4

我實現了一個選項以從實際位置查找最近的標記。我使用一個自定義InfoWindow來獲取ClusterItem中的所有標記。在沒有集羣的正常谷歌地圖上,我可以使用marker.showInfoWindow();,InfoWindow會彈出。看起來在使用聚類時沒有這種方法,因爲標記不會被添加爲適當的地圖標記。Android在羣集標記上打開InfoWindow

我的代碼:

public class StationsFragment extends Fragment implements OnMapReadyCallback { 
    private static GoogleMap googleMap; 

    private ClusterManager<MyItem> clusterManager; 
    private MyItem clickedClusterItem; 

    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 
      return inflater.inflate(R.layout.main_activity, container, false); 
    } 

    @Override 
    public void onActivityCreated(Bundle savedInstanceState) { 
     super.onActivityCreated(savedInstanceState); 

     Utils.changeLanguage(getActivity()); 

     final SupportMapFragment map = (SupportMapFragment) getChildFragmentManager().findFragmentById(R.id.map); 
     map.getMapAsync(this); 
    } 

    @Override 
    public void onMapReady(final GoogleMap map) { 
     googleMap = map; 

     map.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(0.0, 0.0), 10)); 
     map.setMyLocationEnabled(true); 

     clusterManager = new ClusterManager<>(getActivity(), map); 

     map.setOnCameraChangeListener(clusterManager); 
     map.setOnMarkerClickListener(clusterManager); 
     map.setInfoWindowAdapter(clusterManager.getMarkerManager()); 

     clusterManager.setOnClusterItemClickListener(new ClusterManager.OnClusterItemClickListener<MyItem>() { 
      @Override 
      public boolean onClusterItemClick(MyItem item) { 
       clickedClusterItem = item; 
       return false; 
      } 
     }); 

     loadMarkers(); 
    } 

    private void loadMarkers() { 
     clusterManager.addItem(new MyItem(lat, lng, title, snippet)); 
    } 

    public class ItemAdapter implements GoogleMap.InfoWindowAdapter { 

     private final View view; 

     ItemAdapter() { 
      view = getActivity().getLayoutInflater().inflate(R.layout.info_window, null); 
     } 

     @Override 
     public View getInfoWindow(Marker marker) { 
      TextView title = (TextView) view.findViewById(R.id.info_title); 
      title.setText(clickedClusterItem.getTitle()); 

      TextView snippet = (TextView) view.findViewById(R.id.info_snippet); 
      snippet.setText(clickedClusterItem.getSnippet()); 

      return view; 
     } 

     @Override 
     public View getInfoContents(Marker marker) { 
      return null; 
     } 
    } 

    public class MyItem implements ClusterItem { 
     private final LatLng position; 
     private final String title; 
     private final String snippet; 

     public MyItem(double lat, double lng, String title, String snippet) { 
      this.position = new LatLng(lat, lng); 
      this.title = title; 
      this.snippet = snippet; 
     } 

     @Override 
     public LatLng getPosition() { 
      return position; 
     } 

     public String getTitle(){ 
      return title; 
     } 

     public String getSnippet(){ 
      return snippet; 
     } 
    } 
} 
+0

你已經看過http://stackoverflow.com/questions/21885225/showing-custom-infowindow-for-android-maps-utility-library-for-android? –

回答

0

您可以在羣集項顯示的信息窗口,通過重寫渲染:

override fun onClusterItemRendered(clusterItem: MarkerItem?, marker: Marker?) { 
     super.onClusterItemRendered(clusterItem, marker) 
     getMarker(clusterItem).showInfoWindow() 
    } 

請檢查,這將顯示信息窗口全部逐一隻有最後一個項目窗口將可見

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